DVS 2216-4:1992-08 Ultrasonic joining of moulded parts and semi-finished parts of thermoplastic polymers in mass production, insertion of metal parts and other materials with ultrasonics
DVS 2216-4:1992-08 Ultrasonic joining of moulded parts and semi-finished parts of thermoplastic polymers in mass production, insertion of metal parts and other materials with ultrasonics